Well, at least not two dicks attached to the same person. That added a new dynamic she hadn't thought about: each dick cumming at different intervals. As one fired, the other was readying a load of its own, and they both went off one right after the other. The issue was that they were both letting out a LOT of cum, and for once Liz wasn't able to keep up. Not wanting to waste anything else as cum started to leak out of her mouth, Liz swallowed what she could and in the process took Carter's dicks as far as she could so that anything else would go right down her throat.
Carter, despite having been given head by Sam, was not prepared for the sudden orgasm, and then the feeling of being swallowed in mid orgasm, so he was writhing on the table as his whole body was wracked with intense pleasure.
"Hoh-holy shit!" he managed to gasp out as Liz kept sucking on him while he came down her throat and Sam nibbled on his ear in her own orgasm.
He had thought he could handle both of them at once, but he wasn't so sure anymore. All he knew was that by the time he left, he would be lucky if he had anything left in his balls at all. After several more minutes of sucking, Liz finally let up and pulled out both dicks with a loud slurping sound, and Sam was just lightly rubbing his shoulders as she lay on Carter's back.
"That was a lot more cum than I ever expected from one orgasm. You sure you have any little swimmers left after that?" Liz ask as she leaned back and looked at Carter through the hole his head was in.
"I should, but if you make me cum like that again, I might not have a third round in me no matter what you try."
"Challenge accepted" Liz said with a smirk. "Now then, how about you flip over and take me and Sam for a ride?"
"Sure, but I need a moment to catch my breath."
"Take your time hot stuff. We've got plenty of it to spare."
As Carter let his body go limp to rest, Sam started to slowly massage him again. It was a nice feeling after such an intense start. Liz on the other hand was still under the table and very gently teasing Carter's dicks to help keep him hard. Not enough to pleasure, but just enough to keep them both at attention, and he was enjoying that too.
After fifteen minutes of post round one happy ending back massage, Sam got down next to Carter's ear.
"Flip over" she whispered with a hint of thinly masked anticipation.
Carter carefully lifted up from the table and turned over while Liz climbed out from underneath and got on the side opposite of Sam. As he got comfortable, Liz and Sam both very tenderly ran their hands along his legs and chest, caressing his muscular form in a way that screamed with their need to make it theirs. He almost didn't even notice that Sam had passed a condom over to Liz and that they were putting them on him.
Once sleeved up, Sam climbed onto the side of the table and stood. Slowly, she lowered herself down onto Carter's left cock, with a little assistance from Liz to make sure it didn't go in the wrong hole. Carter could feel her squeezing down on him, and because he had already cum at least once, he doubted he would be able to give her as good a time as before. But it wasn't just her this time. As Sam got situated, Liz started to climb up too. Once up, Sam helped her the same as she had, and Carter sighed a little as he felt Liz's pussy wrapping around his other cock.
Both girls had a different feel and a different heat to them, and it was clearly noticeable. He wondered if he would be able to keep up with both of them. Sam had seemed to have more stamina than he thought possible when it came to sex, and according to her, Liz was able to go for hours at a time without stopping. He felt like he was in over his head a little, but damn it all if he wasn't going to enjoy himself for as long as possible.
With Sam and Liz now both fully impaled by shark cock and seated with their legs around each other, Carter wondered what would happen first, and the answer was not what he expected. He had been expecting some bouncing, maybe some rocking back and forth to get him really into it, but instead he glanced down his chest and saw Sam pull Liz in for a kiss. He thought maybe it would only be a quick one, but he was very wrong.
Sam and Liz started to go at it as though they were lovers who had been separated for years, such was the intensity and ferocity with which they kissed. The sound of smacking lips and gasping breaths had him transfixed, and as he watched they got even more into it. Hands fondled breasts and fingers squeezed nipples, each eliciting moans of differing pitch from each woman, and then suddenly Carter felt movement on his groin.
As his gaze dropped, he saw that they had pressed their bodies together as close as possible, and that they were now grinding their pussies against each other. It was a sight he never expected to actually be involved in. He could only stare with his mouth open and eyes wide as these two gorgeous spliced women attacked each other in a sexual frenzy, all while ever so slightly grinding not only against each other, but also on him at the same time.
Unable to sit up with both of them on top how they were, Carter could only lean back and let them take him for this incredible ride he was on. He didn't mind that he wasn't the focus of their attention at the moment. The feeling of them moving with him inside them and the sounds of both women trying desperately to satisfy themselves kept him plenty hard, so he was willing to let them continue at their pace until they were ready to include him again. It didn't take long for that.
There was a shift of weight and Carter felt a shake from both sides of the table. He glanced down and saw that Sam and Liz had leaned back and gripped the edge of the table with both hands, both while panting heavily.
"We haven't kissed like that since before you met Jim. I missed it." Sam managed to pant.
"Same here. Now then, how about you stop procrastinating and grind me like you mean it. I know I won't be the only one that enjoys that, will I?" Liz said, glancing over at Carter for a moment.
Without waiting for his reply, Liz and Sam pushed forward with their arms and slid their hips as close together as possible, and immediately started to grind against each other with even more intensity than they had only moments before. This time though, Carter was getting a lot more out of it. Between the sliding back and forth and the hip gyrations, Carter wasn't even sure if his dicks were supposed to move they way they were currently. Yet they were, and it felt amazing.
He didn't know how long it lasted, but it had to have been at least thirty minutes. Thirty very intense minutes, and despite that, he had managed to not cum. Liz and Sam however, both came HARD. They pulled each other tight as they did, each one lost in orgasmic moans as their bodies spasmed in pleasure. In the midst of it all, they had gotten on their knees on the table between Carter's legs, and Carter was able to quickly get off the table. He hadn't cum yet, and he wanted to very badly now.
He stood by the side of the table and carefully maneuvered them so that they were lying on their sides while still clutching each other tightly, and once he had them where he wanted them he lifted their legs out of the way and saw his targets. Each pussy was pulsing in time with their gasps, and they were so soaked with each other's juices that he wouldn't need a drop of lube. Carter lined himself up, putting only the smallest bit of himself inside their folds, grabbed a thigh with each hand, and then simultaneously pulled them towards him and thrust into the both of them.
Neither of them had time to fully register the sensation as Carter went to work on both of them. In a matter of seconds, Sam and Liz were both being fucked with raw intensity and wild abandon. Having only just barely come down from their previous orgasm, it wasn't long before both of them were moaning loudly as Carter put his hands around each of their waists to get a better grip. It wasn't much longer before he hit his own limit.
"I'm gonna cu-AAAAAAAAGGGGGGHHHHHHH!!!" Carter practically shouted as he came even harder than he had earlier. So much so, that he seized up, unable to move as each cock exploded with hot cum. Not being able to react meant that Carter couldn't squeeze down and try to get as much out in each spurt as he normally would, so instead it was two long and continuous flows , and each second drained him for both cum and stamina. Next thing Carter knew, the world went dark.