Should I tell my male situationship I’ve only had sex with women when I want to lie?

Okay context— I’m (22F) bisexual but very woman leaning. Situationship (27M) knows that, he’s bi too. It sounds crazy, but it seems like there’s this divine intervention that prevents me from having sex with a man. And I mean I can count five separate times something has come up to prevent or stop or interrupt it. I won’t go into detail but it’s kinda funny and mean of the universe.

I’ve only had fleeting/short term relationships with guys, opposed to women. But saying I haven’t fucked a guy seems like I have NO experience with guys which isn’t true so I didn’t want to go into detail with this guy, especially since he’s older than me (and he’s chill and stuff) but probably expects that experience.

ANYWAY, I wasn’t going to say anything but I’m not sure what the right thing to say is if he asks. Obviously it’s gonna be “the truth! Communication!” But guys this is not long term at alll I rlly just want this to happen without some freak outside force coming between us and move on lol. Usually I know exactly when to lie and when to be honest but here I’m genuinely at a loss.