GF took her 1st BBC a few years back. He was big, like 9+ & very thick. And loved to kiss.
Among other ways, he had her in her stomach with a pillow under her midsection.
I held her hands and looked into her face as he fucked, no, plowed her from behind. She was right at the agony/euphoria line. " He's SOO Big, SOO deep, he's SOO thick!". But it was the lustful look on her face that was fantastic to me.
I Asked her several times if she wanted him to stop and each time she groaned "Oh God, NO, absolutely not, I want to feel him drain his big balls in me!"
And after a marathon fucking, like 40 minutes, he did just that filling her pussy like a fire hose.
30 minutes later she was sucking him hard again. He came on & in her 4 times in 3 hours that day.
But it was the incredibly passionate way she kissed him, as non-stop as possible, so deep & soulful. She told me later that she'd cum several times as they kissed like that, whether he was fucking her or not. Absolutely hot & sexually amazing.