'Hot' threesome just left me cold

MY girlfriend beds women as well as men.

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She's friendly with a Zumba teacher she met at the gym. This woman comes round here, and they giggle and cuddle on the sofa right in front of me.

The other night we all went to bed together and I felt like the proverbial spare part.

This Zumba teacher is quite bolshy and assertive and literally elbowed me out the way every time I attempted to touch her or my girlfriend.

In the end they were so into each other I sat on the edge of the bed scrolling through my phone.

Seeing two women together should be horny, right? But this was just humiliating for me.

The friend made it abundantly clear I wasn’t wanted and my girl was so caught up in the moment she didn’t even notice I'd checked out.