Looking for a hentai (could also be western, i dont care) where the girlfriend or wife cheats with another girl and her boyfriend or husband and becomes their slave/pet addicted slut. Bonus points if the girl is the girlfriend/wive's best friend or sister. Also bonus points for pet play, little play or etc.
is there one with the ones taking advantage being both a male and female? Friends of the female or something like that, or at least similar age.