Demi Lovato, Wilmer Valderrama considering marriage

Demi Lovato and longtime boyfriend Wilder Valderrama have been dating for about five years, and sources say the couple is thinking about tying the knot.
"They always talk about marriage, and they are definitely going to get married, but a timetable has not been determined for when that will happen," an insider told Hollywood Life via Yahoo.
"There is no pressure and it could happen in 2015, but it could easily happen in 2020," added the source. "It's coming down to when they want to have kids, they want to do everything all at once."
The 22-year-old singer and the Venezuelan actor are very private about their relationship, but Lovato broke her own rule of "never [posting] personal pictures" in November when she shared a snapshot of herself and Valderrama on Instagram.
"He is perfect. I miss my @wilmvervalderrama," she captioned the photo at time.
The couple has been dating on and off since 2010.