He comes from a well off family but they prob disowned or disliked him for being gay or soft hearted (idk) and that toxic mentality was also put on his hypothetical sister, SOOOO when his sister gets pregnant she goes to her brother (the only family member she can trust) to take care of the baby while she ran off somewhere (or maybe stayed with the family but kept the pregnancy a secret)
The baby came from the seme's sister
He comes from a well off family but they prob disowned or disliked him for being gay or soft hearted (idk) and that toxic mentality was also put on his hypothetical sister, SOOOO when his sister gets pregnant she goes to her brother (the only family member she can trust) to take care of the baby while she ran off somewhere (or maybe stayed with the family but kept the pregnancy a secret)