Young Bi Male (in relationship)

So I am a straight male, disclosed and bi with my partner. She is very accepting and super lovely. My bestfriend.

I am conflicted because I am comfortable with myself and things I do separately with men. We are young (22 and 21) and “mature” in many eyes from an outside perspective. She is very adamant about cunnilingus but won’t excessively push it. I personally feel less of a young man having the roles reversed (not that it is anything wrong with that). I consider myself to be dominant with some submissive attributes but I think it’s a threshold of things like this. Please correct me if I am wrong.

For friends that get this (Males) - Can you share your thoughts or experiences? How did you feel at first? Did it change your perspective or relationship?

Women- How did you feel? Did you have second thoughts about your partner?

Best,
A young bi male seeking advice.