The rest of the afternoon we played in the sand swam in the surf and laid in the sun. Around 4:00 we headed back to the room. I told the girls I had gotten us late dinner reservations at a dance club and it would be 9:00 till we ate so we grabbed a hamburger on the boardwalk to hold us over. When we got back to the room Tina suddenly decided she was thirsty and went back downstairs to get drinks for us. I knew she was giving Tammy the opportunity to ask me her question.
I unlocked the door and we stepped inside. Tammy looked at me and said "I have a favor to ask. I asked Tina and she said it was up to you, but she thought you'd say yes."
Playing dumb I said "What's the favor? If I can I probably will."
"I'd like you to make love to me the way you do Tina." She blurted out.
"How does Tina feel about that?" I asked her.
"She said it was OK and that she would help so I didn't get scared or anything" she answered.
"Are you scared?" I asked.
"A little. I know it will hurt a little because it's my first time. But I see the love you and Tina share and I want to share it too, if you'll let me." Tammy answered me.
"OK but when the time is right. It will be better than if we plan it and say, that at 6:00 we are going to do it. Just when we both want to and when Tina's here to help." I said.
With that she started to cry and threw her arms around me. We were locked in that embrace when Tina came in.
"Tammy asked me her question." I said "I told her I would be happy to when the time is right."
Now Tina joined into our hug. After kisses all around I suggested "Why don't we jump in the shower and rinse off the salt and sand."
"Can I get in with you guys this time?" Tammy squeaked.
"Of course." I answered.
With that we all stripped each other naked and headed for the bathroom. It was play as much as shower. We got all the salt and sand off and I got my dick sucked a little by both girls individually and in unison and I fingered both of their pussies for them along with stroking them and sucking their tits. I even got them to wash each other with the soap. Seeing that was a real turn on for me and I could tell that they enjoyed touching and being touched by each other.
Once we were done we dried off and crawled into bed for a nap. We were all tired from the sun and surf so we just cuddled up under the sheet, the three of us naked in one king sized bed. There was a lot of touching and gentle kisses all round before we drifted off.
I woke about an hour later. Still plenty of time before our dinner reservations. Tina was already awake and resting her head on my chest, gently stroking my chest and losing her fingers in all the hair. I leaned down and kissed her and she smiled back at me. Tammy was still asleep curled up tightly against me in my arm. I took hold of one of her tits with my hand and traced circles around the nipple, slowly teasing it to life. It was only a minute or so before both her nipples were fully erect. Tina looked at me and asked, "Now?"
"I think so I whispered back. She smiled and leaned up and kissed me. "Thanks for being so sweet to my sister." She whispered.
"I'm sure it will be my pleasure." I whispered back.
"I know, but you're not a letch about it." She answered me and kissed me again. Then she sat up and moved to the bottom of the bed. She sat there Indian style, with her pussy spread wide open for me to see.