Desire.

Logan didn't expect for Ava to finally give herself to him. He has been waiting patiently for this day but he wanted her to be sure. He used his thumb to caress her lips as he asked "Are you really sure that you are ready. I don't want you to feel pressured about it."

Ava smiled and nodded, she said "I want you Logan."

Those words were all he needed to lose control of himself. He kissed Ava so passionately that she let out a soft moan, but it was swallowed by his lips.

And then he stopped the kiss and led Ava to the bedroom. He turned her around and traced kisses on her collar bone and then he loosed the knot on her dress inorder to undress her, leaving her in only her undergarment.

Ava felt embarrased when she realized she was only in her undergarment, but when she turned to faced Logan, her embarrassment immediately disappeared when she saw the admiration and love in his eyes.