Alec's first response was to blush then he just laughed. While the idea of touching him again was one that Alec wanted, just the idea of spreading glitter on Magnus was not what he thought today was going to turn into. "Then I will get glitter all over me." Alec smiled back and they might not get out of the house at this rate.
Alec kissed the other back, his arms automatically finding a place on the other's shoulders. "It thought we were going to shop." He asked a bit dazed into the kiss. Not that he was complaining. Kissing was preferred over shopping.