someone we met at desire tagged us in a public group pic and now my sister in law has texted "wait was that THAT kind of resort"

2 hrs ago this happened. typing while it is still fresh. we got back monday from a 7 day stay at a lifestyle resort. we will not name it but if you know you know, the kind that comes up on every "best of" list, mexico. lovely time. zero drama on the trip itself. came home tan and happy. today, tuesday, one of the couples we hung out with there posted a public instagram of a group of 12 ppl on the beach at sunset, all in resort clothes, all looking great. and they TAGGED my husbands instagram handle. publicly. with his real name on the tagged post. now. the photo is not explicit. not even close. its just 12 attractive adults at a beach at sunset. anyone scrolling past it would just see vacation content. UNLESS they recognized the resort. and one of the visible details in the background is a sign with the resorts name in big letters bc the photographer didnt think. within an hour of the post going live my husbands sister (m37, lifestyle aware = no, very straight laced, married a guy who works for the church publishing house) texted him "oh you guys went to mexico ! wait was that THAT kind of resort? i think i read an article about that one a few yrs ago". the article she is talking about almost certainly outed it as a lifestyle resort. she does not say "lifestyle". she says "that kind". the silent ellipsis is doing a lot of work in her sentence. my husband has not responded yet. he literally walked in from the gym 30 min ago, saw the tag, saw the text, sat on the floor in the foyer, and said "babe ?". now we are in the bedroom googling how to ask instagram to remove a tag fast and trying to draft a response. things going thru my head. we KNOW we shouldnt have let group pictures happen. we usually dont. this trip we lapsed. asking the couple to delete the post NOW basically confirms the resort is what she thinks it is. if it stays up its already up. if it comes down 3 hrs later thats a flag. neither is good. we COULD just say to my husbands sister "yeah it was a couples resort, not really our usual vibe but the food was great" — vague, not technically false (it IS a couples resort), and deflects. we could ignore the text for 24 hrs and let it cool down. but his sister TEXTS back so this delay will read as something. we could come out to her right now in the wake of this and just say "yes it was that kind, we have been in the lifestyle a few yrs, were ok, please dont share". cleanest in the long run, scariest right now. the family politics — his sister WILL tell their mother if we tell her, almost guaranteed, even if we ask her not to. there is no version where the sister knows and the mother doesnt. that is the actual stakes calculation. right now we are leaning toward the soft deflection ("couples resort, food was great") + asking the couple to NOT tag us going forward but to leave the post up. just trying to ride this one out. anyone been outed by a tag like this and survived it. how did you frame it to the family member who asked