SB 10.15.14
kvacit krida-parisrantam
gopotsangopabarhanam
svayam visramayaty aryam
pada-samvahanadibhih
Translation:
When His elder brother, fatigued from playing, would lie down with His head upon the lap of a cowherd boy, Lord Krsna would help Him relax by personally massaging His feet and offering other services.
Purport:
The word pada-samvahanadibhih indicates that Lord Krsna would massage Balarama’s feet, fan Him and bring Him river water to drink.