A different perspective - I’m not ‘forced’ to eat my own cum, but I’ve been trained to enjoy it by two different women; an affair partner, and my wife.
I had an affair partner that introduced me to cream-pie eating. First, it was my own - after fucking, she would face-sit me, and forse feed me my own cum from her freshly fucked pussy. Later, she would come back to the apartment after ‘girls night out’ freshly fucked, but on the sly - we’d fuck, followed by a face-sitting session, where I got the mix of my cum and whoever she’d fucked earlier in the evening. I always knew - the taste of her cum-loaded pussy was always different after she’d had a strange cock inside her.
Later in life, my wife became an aficionado of queening / face-sitting, and feeding me my own cum, or a lover’s cum. KK even has purpose-built furniture for this practice - a queening stool. This allows me to lie comfortably on my back, with my face in the opening of her queening stool, while she sits comfortably, draining her open cunt into my face while I pleasure her with my lips and tongue.
KK and I have other cum-eating games, from snowballing to sharing a ‘cum martini’ - where I either masturbate into a martini glass, or KK gives me a cock-head finger job, with me ejaculating in the glass. Then we share the result.
I prefer eating my cum from her pussy, given a choice.