Lock your boy until he becomes an innocent, awkward little virgin again. Make him forget what sex feels like and make him feel like he must impress you immeasurably before you’ll take his v-card back.
I was once unsure and held back from losing myself in my submissiveness. In the process, I unfortunately hurt many beautiful Dommes and Doms who gave me their 100%, I couldn't reciprocate. But now I know, and now I surrender, I bend over, vulnerable and
