Petite wife enjoys anal sex with me and wants me to ejaculate on her buttocks

I've been married to a petite wife for a while now and we've been enjoying each other's company in bed. She's been yearning for more, craving a deeper exploration of our desires. So, I decided to take her anal plunge. I started by kissing her neck and shoulders, then I slid my fingers into her tight little ass. She moaned in pleasure as I continued to tease her, my tongue exploring her moist folds. Finally, I entered her with my full length, feeling her warm wetness envelop me. The pleasure was intense, even more so than when I'm pounding her pussy. After a while, I withdrew and let my cock spurt all over her round, firm ass cheeks. She loved every moment of it, hoping I'd repeat this anal session soon.