Exactly what I was going to say!!I don't have orpingtons but I don't think he is gay, they are still all young he is still learning to mount them and they are still learning to submit to him, which makes for everything to be a clumsy attempt. My girls eggs were not fertile for a few months till everyone know what they were doing. I remember watching my roo with the pullets he would get up there but if the girls squawked (which all pullet at POL do) he would quickly get down. Another thought if after a bit if your eggs still are not fertile you may need to trim feathers around vent as Orp are in the fluffy butt club like my silkies.