You can use it for sex! You can request a refund of the handling fee by reaching out to CS of Paypal or the bank.
You see it all the time in movies, but how many of us are actually running into a restroom and doing a nice little quickie with our partner? It's the same way dogs hump each other—hence, the name.
You're also perfectly positioned to dabble in impact play, such as or hair-pulling—only if you're both into it, obviously.
Doggy style also allows the top partner to inside their partner, which could potentially lead to a blended orgasm for the bottom, if they have a vulva.