He put his finger in my mouth

So like... my mans & I were doing it and like he gets a little wild but like does the typical pulls my hair, chokes me, but he’s delicate with me so he doesn’t hurt me at all, just I guess to get him going even more he does it, which I love that he’s sensitive, but so off topic. Anyway recently he’s been putting his finger in my mouth while we are doing it and I’m on my back and like what does he expect me to do with it? Like suck on it? Gag? Like tbh idk

Sooo I said “I didn’t gag while you had your finger down my throat” once we were done, and he laughed and said “hahaha you didn’t” and all I said was “you didn’t put it deep enough” but like that was all we just laughed, I didn’t want to make him uncomfortable and ask why he did that, cause I mean if it turns him on I don’t mind him doing it but like what should I be doing while his index finger is in my mouth LOL sorry this is long /: