There are things I could do in my 20s and 30s at 135lbs. that I just can't (not that I don't still try) get done in my 60s at 240lbs. Body parts don't seem as flexible now.
I have tried but could not enter nut I do enjoy trying because after I cum I play with my cum on my man pussy and finger myself with my cum.
So I have a feeling at some point you stopped for awhile before you got older right? What were the reasons you stopped? Did you feel like it was too inconvenient or not worth the effort?
The reason I stopped was a 10 year relationship with a red headed women that made sure I had no reason to have to pleasure myself. All I had to do was say lets do or try this and it was on.