To all wannabe cucks/stags: if you are like me and you were always too scared to actually share your partner, you might wanna invest in a large mirror.

I just spend the weekend having sex with my girlfriend in front of a mirror that was hung next to our bed, and HOLY FUCK.
Being able to watch her from an outside perspective was absolutely exhilarating. It was easy to ignore my own face and imagine I was watching her with someone else.
Bonus points when she made eye contact with me through the mirror. Looking into her eyes while she sucked 'someone else's' cock instantly became the most intense erotic experience of my entire life. The way she flashed me a quick, teasing grin before slowly dragging her tongue across the dick in her hand... Jesus fuck.