Miranda most certainly had not expected Jamie to suddenly kiss her, but since it was Jamie, she did not really mind either way.
Half a second after her light surprise at the sudden kiss, she was already reciprocating.
As for what she planned to do with his hair earlier? That was not important anymore.
The both of them momentarily separated to catch their breaths before once again taking each other's lips for a kiss. A long and passionate kiss.
Jamie's kiss moved down to her neck, sucking at it hard as if he wanted to leave a mark there. Miranda momentarily felt something small and pointed trace its way down her neck, but when the sensation she expected afterwards did not come, she pulled her body away and lightly glared at him with a pouting expression.
The teasing look she saw in his eyes made her feel a bit miffed, and the desire to get back at him arose within her.