They are not engaged just yet they r gonna wait awhile,but,yes,they have had sex zacs mom caught them around the time they strted dating and ended up giving him condoms 4 X-mas. Hope i helped ; )
No they aren't engaged but I wish they were! Hehe! I think they have had sex because he did say in an interview that he did with Vanessa, but i didn't read about his mom finding out! Hehe x :)