Hopefully the amazing community can help me out with this one as well. I read this YEARS ago and would love to find it again.
General plot is this young boy living in an apartment complex constantly hears his neighbors having sex. His neighbors are a young couple, and he is very attracted to the wife. Either through force, blackmail, or, begging he rapes her and continues to have sex with her until she becomes addicted to sex with him. Eventually she becomes pregnant with his child and gives birth to it, lying to her husband that it's his.
Possible additional plot element (so long ago these could be wrong) is she is a teacher who comes over to his house initially to tutor him. Pls and thank you :)