That sure looks like a thing...

You think for a couple more moments, while watching the girls getting into their little private show, and then finally slip yourself out of your chair.

"Hmm...?" Kate is the first to notice you heading their way, voicing a soft moan while Rachel seems to gently be chewing on one of her nipples, and then try to invoke the other's attention. So by the time you reach them they're both looking up at you with curious expressions on their lovely faces, and then they look down to your crotch like one, and both start smiling as they notice the obvious proof of your condition...

"Turn!" Says Rachel, while pushing lightly on the other girl's hips, and you soon come to realize she can read your mind even better than yourself. While you did have some loose idea about what you were after, she proves to have a much better sense of how to practically go through with it.

Thus it's just a matter of moments before Kate has turned around entirely, and she's now facing you instead of Rachel, though her bottom is still grinding down on the other girl's lap. You must say that you're a little surprised at the eagerness displayed on her cute little face, though she really has gotten a lot more at ease around you over the time you've spent playing the game.

"Like this...?" She asks you, with just a little bit of stuttering and a certain increase of colour to her allready reddening face, and then she arches her back to really put her curves on full display - while leaning her palms onto Rachel's knees, so that her breasts are also pushed up and together between her slender arms. "Y-you like them...?"

"Oh, yes...!" You smile at her softly, and then reach down to gently rund your fingers across each of them in turn. This caress causes a slight shiver through her body, though it's obviously of delight rather than nervousity, and along with her little gasp of pleasure they impel you to quickly step it up a bit.

"U-uhmmm..." The blonde murmurs delightfully as you take a step closer to her, making her rock hard nipples push firmly at your thighs, while your own hard member pokes firmly in return at her silky cleavage. She's now fully understanding of her task at hand, and she doesn't even hesitate to push herself back to your protruding pelvis.

Soon she's rocking herself firmly against your front, while you take your time exploring her hair, shoulders, and the sides of her full breasts with your palms. A few times your fingers come to collide with Rachel's too, when she slips them upwards from Kate's hips, and she smiles at you lovingly while she too has her private parts attended to by the girl between you.

You feel like this could go on forever, without ever getting boring, but know there must still be an end to it eventually. You really don't want any accidents inside of your pants after all, and you guess that the same would go for your housemate, so you decide on quitting this little act before it's getting to that...