Moderately arousing:
Rub, kiss or suck the fingers and toes. Tickle the soles or apply firm pressure to the instep. Don't neglect the palms when holding hands or during foreplay. Keep fingers interlocked during intercourse.
Keep your finger and toenails clean and neatly trimmed to avoid scratching or hurting your female partner during genital stimulation.
Also have a look at our Tips and techniques section.