The fuck lasted less than five minutes. Tom yelled, "Fuck! Take this cum you slut!", and drove himself all the way inside and held himself there, grinding his pubic bone against Betty's clitoris. Cindy kept her light on Betty as she came, too, but after a moment she dragged her boyfriend back into a kneeling position and kissed him hard on the mouth.
"Oh you really gave it to that slut! How much cum did you give her? Let's see it!" Dick and Tom both focused on Betty's vagina as Tom slowly withdrew and let her hips fall to the sleeping bag. She was still gaping open, and a large blob of bright white cum slid out, followed by a little stream of clear fluid.
Betty, laying on her back catching her breath, said, "Oh, that felt like a lot."
Cindy stood up and started undressing, not caring that her boyfriends' brother was right there, watching her do it. He was about to see a lot more, anyway. "OK, Slut, now do me." She laid down on the edge of the bed like Betty had done earlier and began touching herself.
Betty rolled over, and with Dicks support under one arm stood up. "Hold on, I've been touching myself. I might still have Dicks' sperm in my mouth, and I certainly have both guys on my hands. Let me clean up a minute." Betty picked up the closest half finished drink, swished her mouth several times and swallowed it. Then she spilled some onto her hands and wiped off on her towel, repeating that twice.
"There, that should be safer." She got down on her knees and crawled between Betty's legs.
Cindy kept her light on Betty's face as she crawled up between her legs. "Twice, Betty, you promised twice!" Betty's face disappeared into Cindy's groin, but every time she licked to the top her eyes would stare up Cindy's body. Cindy could see the lust in her friends' eyes, but Betty couldn't see much more than the light from the flashlight.
Dave shown his light over Betty's body, watching her breasts bob as she licked his girlfriend. He walked around the kneeling woman and pointed out the combined secretions leaking from her vagina to his brother. "We did a good job there, look how much she is still leaking!"
Betty latched her mouth onto Cindy's vagina and started tonguing her clitoris. Cindy stared at her friends eyes, with her nose pushed into her pubic hair, as her orgasm came upon her. Cindy dropped her phone as she started convulsing. Betty held on tight as her friend thrashed around on the bed. After about a minute Cindy started pushing Betty's head away, "Enough, enough, enough! Please!"
Betty loosened her hold on her friend and said, "That's one." As Cindy calmed down Betty rubbed her hands up and down her friends legs, across her stomach and up to her breasts. She was letting her friend recover, but keeping the contact to keep her excitement simmering.
Eventually Cindy picked up her light again, "Sorry about that, I got distracted. Please continue Betty!"
Betty smiled as she took a long lick up her friends' folds, "As you wish." This time it wasn't just tongue, though, this time she used her fingers the tease Cindy's opening. First only one, then two fingers sliding in and out. Betty even used her thumb against Cindy's clitoris as she kissed all around her friends' groin. It didn't take long before Betty latched onto Cindy's clitoris again, and this time running her fingers in and out while doing so. 'Oh Fuck, here it comes! Ughh. Yes!" Betty again held onto Cindy's hips, removing her fingers to hold on with both hands. This time, though, she didn't let go so quickly, she held Cindy in her orgasm for several minutes, her mouth and tongue continuing to stimulate her friend until she finally relaxed with exhaustion.
Betty smiled as she stood up. "That is two, just like I promised! But now I'm turned on again!"