Pitter-Pat
Ksenia lay in bed, not wanting to get up. She could indulge that feeling for five minutes, at least. Maybe as many as seven. Burying her face in her pillow, a position she never fell asleep in, she enjoyed the warm cocoon of her bed.
She became aware of her heartbeat. She'd tucked her arm under her body for maximal coziness, and she felt the blood flowing through the veins of her elbow pit as it beat against her ribs, ba-dum, ba-dum. It soothed her. Tension seeped from her shoulders, and she smiled.
Other places where her pulse neared the surface made themselves known. She felt the beat of her wrist against her hip, and the pianissimo rhythm of her other hand's thumb tucked against her shoulder, bi-dip, bi-dip.
As she relaxed, she opened to ever more sensations, becoming increasingly attuned. She felt it in her knee pit against the blanket so warm, and in her one ankle crossed over the other, and where her neck pulsed strong, deep in her pillow, thrrrrum, thrrrrum.
Where she felt a different rhythm, rapid and shallow: bidibidibidibidibidibidibidibidi. She surged up onto her elbows and stared down, relaxation forgotten.
"Oh, shit," said the pillow.