Alec spares the time to rid himself of his shoes and socks as well, following them a moment later with his shirt. He also teases the blankets down, just to make them easier to pull over Magnus when they're done. If he can get his boyfriend to sigh happily, he'll consider it a job well done.

Reaching for the lotion, he holds the jar between his hands for a few breaths, feeling its heat, before using his fingers to scoop a generous amount into his palm. Magnus' magic is of course on point, the lotion warm without being uncomfortably hot and Alec generously coats both hands before bringing them to Magnus' shoulders. "You must have muscles made of steel," he murmurs as he starts out by carefully stroking over his boyfriend's shoulders before starting to rub gently. He'll work his way up to really digging into the tissue as Magnus relaxes under him, steadily making his way from shoulders down Magnus' back. "New warlock mark maybe? Steel muscles?"