"Put it in your mother...❤" My mother's first incest, feeling sorry for her child's erect cock

As my son grows up, he gets excited when his panties are bulging...Is it normal now or is he getting an erection? Is that dick knowing women? Is he so lonely because he's masturbating? I'm so loving and worried, and I've been gradually losing track of how to treat him recently... But when I saw the raw cock, I could clearly tell...I want my son's dick...!