Wow, glad to hear that I'm not the only one who enjoys emulating gokkun fantasies. Yes, there are so many kinky things to try, e.g., funneling, licking it off a dildo, mixing it with food. Gokkun titles are a source of inspiration, for sure.
Not sure if it's the same but my GF is quite kinky and experimental when the mood hits her. First time I tasted my own semen was after she sucked me off once. Usually she swallows and we cuddle but this time, she came up and kissed me deeply and then I felt her pass some sperm to me. Initially I was stunned and didn't quite know how to react but just went with the flow and that made her get even more excited which was nice. Later she said it turned her quite a bit and made her feel warm and fuzzy that I was willing to let her live her fantasies too and wasn't just trying to have my own fun.
Second time, we were fucking and I came in her and without a word she grabbed my head and pushed me to her pussy and rubbed her pussy against my mouth so I started eating her and man, she started having a wave of orgasms and was gushing. After that she was all flushed, trembling and actually breathless for quite a while. Later she said even her nipples were hard for a few days after. It's still one of the things that makes her cum very very hard and I'm glad it's something I can do to pleasure her after all the pleasure she gives me.