You're pretty much there, it's not so much about the physical aspect of the bj, but rather the visual display and excitement of seeing 2 horny women enjoying themselves. The bj naturally feels nice but the brain is the biggest sexual organ and that's the one that needs stimulus, and these 2 enjoying such moment sure provide more than enough stimulus!
The bj naturally feels nice but the brain is the biggest sexual organ and that's the one that needs stimulus, and these 2 enjoying such moment sure provide more than enough stimulus!