If you have to or want to then just don't tell him. But I don't recommend a 12 year old to wear girls underwear if you are a boy.
Wear pants over top of the underwear.
A boy does not need to wear a girl's underwear if his crouch is getting big because the underwear is not designed for them.
You should make a list of the pros and cons, plus why you want to wear girls underwear. As a 12 year old boy, you will need to make your mom understand why you do not want to wear boys underwear.
You could tell your dad you are a transsexual or you have a gender identity disorder. However, he may get angry or send you to therapy. This may not be worth being able to wear girls underwear.
it prabably mean hes gay or cant find his under wear
No.boyshorts are underweAr
No. but if its the only underwear you have then wear it, but its not normal
toptrouser
For a 12 year old boy, it would be most appropriate to wear boy shorts or briefs designed for boys, as they typically provide the best support and comfort for male anatomy. It's important to choose underwear that is designed for your assigned gender at birth to ensure proper fit and function.
For a 12 year old boy, the best underwear is the boy shorts.
Find out yourself.
For a 12-year-old boy, traditional boys' underwear such as briefs or boxers would be more suitable than girls' underwear styles like thongs, bikinis, or hipsters. It's important to consider comfort and appropriate fit for the child's age and gender.