Let me give you context
So I met a girl on Tinder and we hanged out here and there, I wasn't that into her bc during that time I wanted just to party and all, you know a true bachelor lol.
There has been signs she wants to revisit that kinky zone we had before but not directly, and me too. So I was thinkin on buying her a toy, what do you think
Another separate opinion of the question is, you said that the girl was in a couple, if this does not bother that couple is fine but if you suppose a nuisance between them then no.
Another opinion, drugs, will not enter into ethical questions, I do not recommend its use, I believe that everyone's decisions should be free from any influence of those substances and that sex, whether anal or not, should be enjoyed with all mind and senses working optimally.
That is all I am going to say. I hope it helps you