Think about this, vagina's are disgusting bits of flesh with weird liquids flowing in it,they're also bacteria ridden and are in general, disgusting...
Boobs are also disgusting because they're really just tissues of fat, mmh. Fat.
Penis's though are hot, they're goldmines of cum, where the stuff in cum can make your skin better, also holding one feels warm and great.. Convert to homosexuality today and learn the truth!