Swinging with Partners...

Met some people at a party... started chatting.... felt there was an immediate connection. Decided to take things further, invited them back for a quiet evening.... nothing too explicit initially, just flirting and teasing.... then one thing led to another, and we found ourselves in this unspoken arrangement where anything goes.... threesome with their partners.... no rules, no judgments... just enjoyment.... Does this kind of dynamic sound healthy or is it something you’d advise against?