When I first started writing romance my books were full of caresses and gasps. Luckily the internet came to my rescue. Here are a few suggestions for turning up the heat!
Replacing caress :
Cuddle, squeeze, pat, feel, pet, stroke, touch, rub, brush, slide, sweep, whisk,
rub, graze, nudge, tap, grope, fondle, tickle.
Replacing gasp :
Gulp, pant, exclaim, moan, whimper, sigh, wail, inhale, exhale, cry, murmur,
whisper, huff, pant.
Putting it in :
Enter, penetrate, insert, slide in.
Moving it around :
Pummel, thrust, poke, hump, gyrate, push, pull, ram, enter.
Useful words for mouths and tongues :
Lick, taste, ripple, slide, bite, nibble, nip, chew, salivate, kiss, peck, embrace, smack.
How do you feel?
Positive:
Excited, delighted, enthusiastic, passionate, aroused, stimulated, stirred, steamy, wild, pleased, ecstatic, awoken, spurred, teased, inflamed, provoked, thrilled, electrified, hot, horny, inspired, pleasured, loving, amorous, erotic, desirous, lustful, sultry, turned-on, wanton, ravenous, satisfied, relaxed.
Negative:
Tired, disappointed, anxious, nervous, exhausted, wiped out, discouraged, dissatisfied, frustrated.
Movement :
Bounce, plunge, go-down, slide, hump, push, jerk, dance, rise, twitch, sit, stand, roll, lean, lift, pull (out), grab, gyrate, leap, tickle, jump, shift, switch, tumble, propel, perch, squat.
How to do it :
Gently, hard, softly, lightly, smoothly, gradually, constantly, continuously, deliberately, calmly, savagely, strongly, boisterously, energetically, fiercely, intensely, powerfully, violently, tenderly, smoothly, gingerly, daintily, cautiously, subtly, deftly, freely, willfully, carelessly, delicately, quietly, loudly, timidly, soothingly.
Parts (I personally just tell it like it is, but in case you want to go subtle…) :
Bulge, nub, swelling, protrusion, prominence, curves, curtains, bud, tip, shaft, lips.