I would if i could but i can't

A boy got really bad test results in an exam and he didnt want
his mum to find out.
A girl came up to him and asked if he'd walk her home, but he
said "i would if i could but i can't" the girl threatened him
and said she tell his mum about his test results if he didn't so
the boy walked her home. She then asked if he would go up to her
room with her, he said "i would if i could but i can't." The girl
threatened him with the test results again so he went up to her
room. She then asked if he put would his dick in her pussy but
he said
"i would if i could but i cant." The girl threatened him with
the test results again so he did.
After half an hour the girl asked the boy to take his dick out,
to which he replied "i would if i could but i can't"