If men had easy access to sex, would they be less masculine?

Imagine to take a sample of betas and give them easy access to sex, the same young women or gay men have. I'm not going to specify the details, you can think of giving them slave concubines, realistic VR, realistic sexbots or anything else you want.

Would they be less masculine in a conventional/traditional sense? you know where I'm getting at: masculinity might be at least in part a product of men trying to make themselves attractive to women because that's what women look for in a partner. Without that pressure how less masculine would you think they'd turn out to be?