the device is automatically provided (there must be a little Mr Strapon guy hiding somewhere who jumps out and fits it on the female as I have never seen the female do it themselves) so neither of you really have to purchase one
As much as I like receiving I however know that there aren't that many females interested in giving, many find the prospect weird.
at fırst sry for my englishactualy on 1 on 1 sf sex ı thınk ıt must be a switch button on some poses.so female can fuck shemale.i dont thınk ıts weird idea.