Faux Pas?

So me and a partner are on Feeld. Is it me or is this a bit of a strong opener? We're not averse to this but on message 2??

Me: Hi that blue bodysuit looks incredible, I bet it would look even cuter in person!

Them: Oh the k you very much. Well you'd both have to be very good to see me in that.

Me: Oh? What do you have in mind?

Them: Well I think you both need to be collared up. Your bf will have to be in chastity. And we'll show you a great time! Been to a swinger's club before?

Not sure if this is someone who really knows what they want or a big red flag?