Jackie has a thing for Hyde’s arms/hands and Hyde has a thing for Jackie’s legs/feet. (supported onscreen)

Obviously, they love to touch each-other and need to in contact at all times.

She’s always on his lap.

He’s always got his arms around her shoulders.

Even when standing, they need to be holding on to each-others waists or leaning on the other.

Headcanon Time:

When sitting (on the couch or next to each-other at a table), Hyde likes to grab Jackie’s thigh and when walking, Jackie holds on to his arm in similar fashion. It’s like their version of morse code. They’ll squeeze whenever they’re nervous or need reassurance. Jackie noticed this when Hyde kept a grip on her thigh during a holiday dinner with WB’s family early on. She took the opportunity to schmooze and keep his relatives talking which made Hyde less nervous. Jackie too keeps a firmer grip on Hyde’s arm when she feels nervous or scared. He takes the hint to calm her usually by whispering something in her ear to make her laugh or smile. It’s just more evidence of how in tune their are with each-other’s bodies/mannerisms and emotions.

Jackie loves how safe and secure she feels with Hyde’s arms wrapped around her, many times when sleeping. She never felt that before, even with all the money to protect her in her upbringing. She feels like Hyde will slay dragons for her. She also loves how big and masculine his hands are. Sometimes during sex, she’ll suck on his fingers and in the afterglow of their lovemaking, she’ll kiss his knuckles. She also turned on whenever she notices his biceps (like playing basketball or any kind of manual labour) and will rub and kiss them when they’re sore.

Hyde loves Jackie’s legs. He thinks it’s one of the sexiest parts of her and has a particular liking to any time Jackie wears skirts or dresses that shows them off (it also reminds him of the summer they first got together). Sometimes, he insists Jackie keep on her heels or boots during sex because he likes it (and is too impatient to wait for her to slip them off). He loves the feeling of Jackie’s thighs around his waist (and head). When they’re especially passionate, he’ll leave light hickeys on her thighs. Of course, he also loves how feminine Jackie’s feet are, always pedicured and sporting a vibrant colour of her toes.