Summer Lovin' (Tell Me More)

Overcome with uncertainty about their future, Scully grasped Mulder's hands in her own pleading up at him.
"Promise me this is forever"
She needed to know this was special, that it was something Mulder also saw written in the stars.
The teenage boy's hands clung to hers, as he reaffirmed her request with a certainty Scully had never heard from him before.
"Scully, I promise"

OR

The MSR Grease AU which had to be written