warming oneself, basking, heating up, being heated
warming (past), that warmed, that was basking
Кот не́жился на со́лнце.
The cat was basking in the sun.
Ма́льчик лежа́л на спине́, купаясь в луча́х весе́ннего со́лнца.
The boy lay on his back, basking in the spring sunshine.