My girlfriend knows of my fantasy to see her with another man, just last week she teased me with the idea of getting her nipples and clit pierced again. I asked if I'd be able to sit in and she teased me with "no" cos she knows if I don't, I'll just create a scenario in my head where she lets him do anything and if I do, all I'll do is go fucking insane with envy, lust and the desire to see a simple piercing go further cos a stranger would be groping my gf's big tits. Does that make me a bad person?