Yes, titjob

"Sure, lets go." You said, going to the door that connected your room with Lily's and holding it open. Adi stepped through and you followed, shutting it firmly behind you. Adi turned towards you with a smile and planted a kiss on you lips. As she pulled away and gently helped you remove your shirt you knew you had to speak up. "I'm uh, not pregnant yet. I don't know what Lily wants to do about that, would you mind if I just used my breasts?" You asked, your shirt falling to the floor beside you. Quickly followed by your bra.

"Sure, there's lube in that drawer." She said, pointing to a drawer in the table next to your bed as she removed the lower half of her clothes. You went over to pull it out. The bottle was nondescript gray and you put enough between your breasts to make sure it would be comfortable rather than painful for you and your partner. You made your way back over to her where she was slowly stroking herself to full hardness, her penis slightly longer than Lily's at about six and a half inches. You wasted no time in moving back and adjusting yourself so that your breasts were level with her ready cock. You'd never done this before but you'd seen it enough times while on the ship back to understand the basics. You moved your tits to either side of her penis and squeezed them together. You slowly began working them up and down.

Adi obviously approved as she looked down, her cock contrasting with your skin in a way that appealed to her she began slowly thrusting along with your movements. She also reached down and began playing with your erect nipples, sending a surge of pleasure through you. As you tried to speed up more Adi stopped you, she stood you up and kissed you, her tongue invading your unexpecting mouth as she pushed you over to the bed. Guiding you down on to your back she broke the kiss, your tongue reached out to try and reclaim it as she shifted up to straddle your chest. Understanding her intention you pushed your breasts together to allow her to begin fucking them properly. As she placed her cock in between the gap she once again began to gently stroke your nipples as she began to thrust forward.

The pace was much faster this time and she gently brought your head up to catch the tip in your mouth at the end of every thrust. The light skin of her cock contrasted nicely with your own and you felt yourself moaning as she brought her nipple play up to the next level, flicking and lightly teasing them with her fingernails. She was obviously having fun as well as you could feel how wet her pussy was as it rubbed against your belly. Giving her some added stimulation. It was obvious that she was a bit pent up as she announced "Cumming!" Shortly before giving one last thrust and unleashing a massive amount of cum into your mouth. The flavor was delicious a mixture of salty and a sweetness that coated your mouth and began to spray over your face as she pulled back slightly. You reached out with your tongue eager to get as much as possible. As Adi moved over and layed down next to you panting you realized that it was odd, you hadn't had any before but you knew that cum wasn't supposed to taste that way.

When you turned your head to ask about it Adi kissed you again, not caring that you had her cum all over your face. She pulled back, a little bit on her face that she brushed off with a finger and held out to you. You let her finger into your mouth and licked it off while she explained. "It's from Gwen's side, one of her ancestors got a gene mod and its run in the family ever since." She retrieved her finger back and gave you a quick peck on a clean part of your cheek before rolling out of the bed.

"Thanks for this. I hope you won't take next week personally. I promise not to either." She added to your confusion. Seeing your expression she guessed that you had no idea what she was talking about. "Oh, did Lily not tell you yet? Well...