I can accept that it would materially increase the risk if you accepted money from his parents PayPal account, and that if you'd known that in the beginning, you would not have accepted the money in the first instance. Given that you want to rescind the transaction, it's fair that you either wait out the charge-back period or have him charge-back.
There is no scam here; the OP should either charge-back the transaction, or wait out the charge-back period, at which point 2007GoldMan is obliged to send the money back to you.