Adult PC Game: Tentacular Release 4 by Jackerman Win/Mac Archive

In this game you play as Guukruux, an octopus like alien creature that relies on females of other species to reproduce and pleasure himself. One day while traveling through space to find new mates, your spacecraft malfunctions and you are luckily saved by Rebecca, a genetically altered perfect human woman and only human crew-member of the Utopia. You spend your time attempting to get as far with Rebecca as you can, manipulating creatures and beings on the ship to assault her, and impregnate her before the ship completes it's charter to earth. Have fun!

Tentacular Release 4 by Jackerman Win/Mac Gameplay Preview