Holy crap, what's wrong with people? (aka: "Now you stab mommy")

[Alex]

Looking at the Connecticut statutory rape laws if she was 15 and he is the biological father (and they weren't married when he knocked her up) then yes, he committed statutory rape.

In that state it is 2nd Degree Sexual Assault to have sex with a 13-16 year old if you are more than 2 years older than the other person.

But statutory rape generally isn't charged unless someone presses for it.