Hi Folks .. got a big problem here .. I am a 65 year old man who has been in a relationship with his boy friend of 17 years younger ... for  30 years ... the relationship is the best I could every wish for ... recently we took into our relationship a third who is attracted to each of us the same socially and sexually ... he is only 24 years old however each of us are his only social and sexual type ... and almost to young for him ... they have not problem with maintaining and  erection and enjoying the situations ... I extremely enjoy the thought the conversations and participating in the sexual act however i do not most of the time get an erection and do not come to a happy ending ... they are totaly understanding and are not bothered by this ... as we have all discussed this in open form ... I am at a point where this is so embracing and unacceptable it is not only running my long term relationship ... it is my my standards totally unacceptable ... I have tried cellist and viagra and have had reactions to both i have seen a doctor and received a prescription for an injectable ... this also only some times work ...