From what I have read on this forum there have been a lot of people who have (or have had) this issue here is just one example of a post. I am in a similar boat myself after recently being put on Sertraline where my interest in masterbation has nigh on disappeared but I am still interested in sex with my partner but I am finding it difficult in orgasming and sometimes, especially if distracted in anyway, maintaining an erection even during sex.
I did ask the GP about this and they want me to have a blood test for some initial checks but as it was the week before xmas when I had this discussion I thought best to wait for the new year to book myself in.
With regards to what can help I am afraid that I cant really comment on that but I have found that the male toys that I have only really work if I am really really in the mood, which has not been often!