wife loves oral sex

went to a family wedding where one of my older sister was feeling no pain . her hubby didnt seem to mind that she was having a good time on the dance floor with her tits bouncing around while she danced in her little dress and slutty high heels. she has some curves to her but for pushing 60 she looked pretty fucking hot. at this point she wanted to dance with me and she was right up againt me telling me i was her favorite brother and how much i looked like our deceased father. icould feel my cock getting hard against her. she even looked me in the eyes and told she felt it against her pussy and wanted to suck it. i was floored but hard . after the reception my brother in law told me to come by theeir room. when i got to their room she was naked except for her heels sucking one cock and jerking another. they both fucked her she told me to stick my cock in her mouth. as she came frome getting fucked i came her mouth. my brother in law had his phone out recording it.