Life is short, and often bittersweet. You are enjoying yourself, and bringing joy in more than one way to a woman who probably feels very alone in a lot of ways. She doesn't have that kind of caring if compassion in her life. It's awesome for you, but you are giving her a lot too. Enjoy it while it lasts, and oh ya, GO FUCKIN WILD! she will undoubtedly be more open to sexual deviancy, don't be afraid to communicate wanting to expand your horizons, and discuss eachothers fNtasies openly.