Joyce and I kept our new sexual relationship a secret from our other friends, mostly because we were just friends and it was kind of fun to keep it to ourselves. Even her best friend Millie didn't know.
So one day Joyce and Millie came over to my house to swim and hang out. Millie was nearly as hot as Joyce, and Joyce had told me that she and Millie had even made out a few weeks earlier, but Millie wouldn't go any further. But she did tell Joyce that her breasts were really sensitive, and I filed that away for the future.
So I'm really getting horny for Millie, and when we were talking close I just leaned over and kissed her. She made a little surprise noise, but eagerly kissed me back. I glanced over at Joyce, and she smiled and I could tell she was enjoying the show.
Millie is probably the best kisser I've ever had, even now. Her lips were really soft, and she playfully ran her tongue over my lips and darted it in and out of my mouth.
After a bit I was running my hands over her back, and getting close to her butt, but not actually going any further. I worked up the courage and reached up and cupped her breast in my hand, and she gasped. Joyce was right, she really had sensitve breasts. So I slowly massaged her breast and stroked her nipples, and she started to really breathe hard.
We were both really turned on, and while I had my right hand on her breast, I slid my left hand down her ass to her crotch from behind, and she said 'no'. Disappointed, I continued to massage her breast and make out, and tried another run at her pussy by pulling her close and sliding my knee into her crotch. I guess since it wasn't my hand, it was OK.
So we are gringing in the pool, and my upper leg pushed against her pussy, and we are both panting and moaning. My dick is straining against my suit, but she isn't going to help me out for sure. But I'm OK with that.
So after a bit I whisper, 'I know we don't know each other that well yet, so if you don't want to go further that is OK. But I know you are about to cum. Turn around and I'll finish you off through your suit, and you don't have to touch me.'
That seemed to do the trick! She turned around, and pressed against me and I slid my hand down to her pussy and began to massage it through her suit. I could feel her clit and she gasped and came. She stiffened and shook, and then relaxed. Millie turned around and kissed me and then got out of the pool.
I looked at Joyce and she was grinning and flushed, so I knew she was turned on by the show. Good thing, Millie had to go to work, so she showered and took off, kissing me hard before she left, leaving me and Joyce alone.
As soon as Millie left, Joyce and I stripped off our suits, and she gave me the most amazing jerk off, and I shot long ropes of cum over her breasts.
That was a great summer!