So there's this game I found called Network Netoraru Karemachi Kanojo where there's a story (haven't played it), but you can make girls and put them on this network. Then, other guys who have the game can come and try and NTR your girls from you. Conversely, you can try and NTR other guys' girls from them.
Oh god yes... I want this game, if it's in english...
Then I'll make traps and futa's, so the other guys leave my chicks alone. Then I'll have them ALL TO MYSELF