You are filled with LEWDTERMINATION.

Ever since the barrier broke and monsters were freed to the surface, Sans has been taking full advantage of the sunlight and fresh air—mostly by napping in it. When his brother Papyrus excitedly scheduled a hangout with you, a human friend he made on the surface, he completely forgot to actually write it down or tell Sans he’d be out for the day. So, when you showed up at the skeleton brother's shared house, you found Papyrus gone and Sans home alone. But hey, a hangout is a hangout, right?