Thanks mate good intel so my conclusions are:
1. he's trying it on but she's unaware - most likely option
2. He's trying it on and she is aware - not so likely otherwise she would be involved more ie she would invite partner for drinks
3. She wants a FF session and is dominating him to set...
Partner (who I don't live with) was invited to neighbours for a Xmas drink when I wasn't around.
During the evening neighbour flashed his cock and his wife didn't say anything.
Partner doesn't get an invite when I'm around.
Are they looking for a threesome, is the wife into watching her...