Yes, it’s fun for sure. The thing is she orgasms quickly, easily, powerfully and frequently. You could bring her to climax just by teasing her nipples. Then, she’d be begging for penetration pretty quickly, probably after the first two orgasms.
I love to go down on her at that point and get my face covered in her fluids, bring her to orgasm again with my tongue then suck on her nipples again as I penetrate her. She is then clawing at my buttocks and demanding my semen inside her. She pretty much always orgasms again the moment she feels sperm shoot against her cervix and vaginal walls.