so, we've been playing off and on with this other couple for many months now and for the most part we like them and enjoy their company (sexually and otherwise). so far we've gotten together three times to play. the first two times were just same room and last night we played a game of "dare" that was really hot.
the problem however is that everything seems to be OK up until the point where we're going to have sex. the other guy seems to struggle a lot and can't get it up. this has happened three times and we can tell that it's upsetting to both him and his wife. it's a little awkward for us too because we want to continue having sex with each other but don't know whether we should stop or what while they're sitting in the corner discussing what to do.
the female half of the other couple also seems to make the problem worse by making comments like "what's wrong? why aren't you hard?" they then get really preoccupied with it and she tries giving him a blowjob until he gets hard and then once they try to have intercourse again he loses his erection. i don't think she's intentionally trying to be mean or anything but is just frustrated.
we'd like to keep playing with them but we're wondering:
1. should we say anything to them?
2. what should we say?
3. how should we say it?
any advice would be great.