Is it normal my nipples get hard when i play with them?

Man or woman, they're going to get hard when played with. That's just what nipples do.

Absolutely, way too much estrogen. Stop doing that you filthy little boy. Didn't mommy teach you proper like?

As a bi guy with extensive experience in M and F engagement, I find tit play quite pleasurable.

With females, I enjoy tit play (including nipples) while inside her. With males, I enjoy sucking his tits while stroking his cock.

While tit play is not for everyone, it is enjoyable for many. I have a female friend of >30 years who can orgasm simply by having her tits sucked.

We are proud to accept you in our community!!! Pink everywhere!!!

Male nipples don't make much sense to begin with.

Nothing to do with estrogen, happens to most men