Here's a
suggestion from the New York City Health Department. Among other things, they say, "Make it a little kinky. Be creative with sexual positions and physical barriers, like walls, thatallow sexual contact while preventing close face to face contact."
METRO UK reports this as
NYC tells people to have sex through glory holes to avoid coronavirus.
The NYC Health Department also tells us, "A positive antibody test for the virus that causes COVID-19 may indicate prior exposure, but it does not mean you are immune from reinfection. A prior positive diagnostic test (nose swab or saliva) means you have had COVID-19 and may be less likely to be re-infected. We don’t know how strong that protection is or for how long it lasts. Be cautious in using these tests to make decisions about who you have sex with and what kind of sex you have since antibody test results are not definite proof of immunity"
Of course, it's up to each person to decide what to do.