Adult PC Game: Last Hope - v1.0196 by Poolside Games Archive

You are the sole male aboard the star pursuer spaceship along with three women. The ship has shut down and the only way to get it going again is for you to fill up the planet seeder (G.A.I.A) with semen. Just because you are the only guy aboard doesn’t mean the others can’t help you out, and who knows maybe they want it more than you do.