Reverse Pegging 

Reverse pegging is a sexual act in which a man wears a strap-on harness to penetrate a woman sexually (vaginally or anally). His penis is not used for this act and may be confined in a penis cage or may simply not be used.

Let's lock you up and do some reverse pegging tonight babe.

Reverse Pegging by Evolving Your Man June 14, 2021

Reverse Pegging 

The opposite of pegging: you put a fleshlight inside your girlfriends asshole and then proceed to fuck it

Carly: can I peg you tonight
Ben: nah babe we’re reverse pegging tonight

Reverse Pegging by ImTheHotOne December 31, 2018

reverse inverse pegging 

Between two persons with male genitalia. One wears a strap-on backwards and fucks the recieving participant's ass by having said participant doing a head stand with hips and knees bent 90° in a sitting position. The participant with strap on, stands up and sits down on the chair structure formed by the recieving participant, inserting the strap on into the recieving participants asshole.

Two male gymnasts tried the reverse inverse pegging after receiving their new strap on.

reverse inverse pegging by Tuguit August 16, 2020