Hmm can I ask? How do you think Zenny would act if his s/o told him that he was her first everything. First kiss, first boyfriend.... and wanted him to be her first time too?
Yes you can!
I think most people would be flattered to be someone’s first partner - and as a cheeseball romantic, Zen would absolutely love the idea that he’s the one. Her first and only love.
I stand by what I said here: it’s pretty canon that he likes to play knight and he loves to be around an “innocent” girl that needs protection. It’s not essential, but he has some self-esteem issues and I think he would feel more “on top of it” with a MC who’s never been in a relationship before: no comparisons, no previous experiences to live up to.
He’s always worried that he’ll lose control, so I’m pretty confident he would go the extra mile to be patient and take baby steps if needed. I also feel he would make an effort to tone down the naughtiness - he’s pretty in tune with the feelings of those he cares about. He definitely wouldn’t want to scare her (I’m sure he used this exact term in this exact context a couple times) with his forwardness.
On a steamier note, it’s implied that he has dated before and I believe he would know what to do to make her feel comfortable with doing something intimate with him. No need to rush into a full-fledged “first time” on their first sexual encounter(s) - he’d want to make sure they got to know each other’s bodies first. The realm of foreplay is vast ( ͡° ͜ʖ ͡°) And he’s eager to please.
Just my opinion, of course! I’m glad you sent this ask again because my tumblr ate the anon one :P