Ashley Simpson and her boyfriend Pete Wentz make such a cute couple ... they seem so compatible!
They were spotted while vacationing in Costa Rica ... poolside, sun-tanning and just chillaxin'.
I'm not sure when exactly they were there, but it was surely sometime before the last few days!
Because just yesterday, Pete got stopped in Beverly Hills by the police for speeding!
In all cases, it would be cool to hear that the 1st couple to get engaged in 2008 are Ashley and Pete ... no?

Check out those poolside photos of Ashley in a bikini!