I've tried it after masturbating. Eh! If I can get right to the edge and have a constant seep, that tastes better. But even so, can take it or leave it. Kind of odd aftertaste and mouth feel.
Best is when a woman has given me oral, let me ejaculate into her mouth, then kissed me with my cum still in her mouth. Maybe also having me lick it of her chin or breasts. Can get me going for a second round.
Surprised one young lady when I was in college. After hours of petting and teasing I came after only a few strokes in her, then kissed my way down her body and gave her oral to make sure she was satisfied. She went wild knowing I was eating my cum out of her. Grabbed my hair, pulled me up for a kiss, then rolled us over and we went into a 69. Ah, to have that stamina again.
Overall, ain't great, ain't disgusting. It is what it is. But the act, either swapping orally or licking and sucking it from her body, is hotter 'n hell.
Now, pee I really like, as long as both of us are well hydrated.