Eeeeewwwww. It’s one of 2 scenarios:
1. (Which I hope it is) Your partner has a severe allergy to latex and can therefore do it safely no other way; or
2. You want to have sex with an animal (lamb) and it’s a good way for you and the lamb to have a threesome with your girlfriend. That’s why they’re gross. Cause between the two of you, there’s the lamb. That is dead cause it’s been skinned. The lamb is an equal participant, dead or alive. It’s also pedophilia because it’s a lamb. So you could be a bestial pedophilic orgy lover. I hope it’s number #1.