This is not really strap-on, but it is real hard-core stuff.
Rammed By Her Fist
https://de.xhamster.com/movies/64578..._her_fist.html
Balls & Prostate Ripped Apart - Part 2
https://de.xhamster.com/movies/57026..._-_part_2.html
Balls in a rope while fucked:
Fucked
https://www.xvideos.com/video2514514/fucked